Results 11 to 20 of about 6,144 (201)

Near-Infrared Switch-Driven Macrophage Dynamically Reprogramming for Anti-Infection and Tissue Healing on Polyetheretherketone Implants. [PDF]

Adv Sci (Weinh)
This study develops a Mg‐H‐SPEEK implant with NIR‐switchable immunomodulatory properties. Under NIR, it promotes M1 macrophages for antibacterial action; without NIR, it induces M2 reprogramming to enhance tissue healing. This dual‐function material offers a smart strategy for reducing infection and improving integration in percutaneous implants ...
Wu Y, Jiang S, He J, Tan J, Zhou J, Zou Z, Wang J, Jiang J, Liu X, Peng X.   +9 more
europepmc   +2 more sources

Space-Confined Synthesis of Sulfonated Covalent Organic Framework‒Polymer Membranes for Enhanced Osmotic Energy Conversion. [PDF]

Small
A sulfonated covalent organic framework within a sulfonated polymeric network, resulting in interconnected, well‐defined ion channels is fabricated by an in‐situ space‐confined synthesis strategy. This allows a maximum power density reaching up to 40.33 W m−2 under a 500‐fold salinity gradient and a real‐world power density of 14.84 W m−2 when ...
Guo Y, Sun X, Zhang Q, Low ZX, Wang H, Zhu Y, Jiang L.   +6 more
europepmc   +2 more sources

Evaluation of power generation and treatment efficiency of dairy wastewater in microbial fuel cell using TiO2 – SPEEK as proton exchange membrane

Water Science and Technology, 2021
The aim of this study is to synthesise SPEEK composite proton exchange membrane with the addition of TiO2 nanofillers for microbial fuel cell application.
D. Vidhyeswari, A. Surendhar, S. Bhuvaneshwari   +2 more
doaj   +1 more source

Immobilizing enoxacin on implant by polyvinyl butyral coating to promote osseointegration in osteoporosis with infection

Materials & Design, 2023
Controlling infections and inhibiting osteoclasts are crucial for the prognosis of bone abnormalities by implants in osteoporosis patients. Here, using bio-inert polyetheretherketone (PEEK) as the representative and polyvinyl butyral (PVB) as a coating ...
Xinxin Bai, Xintian Zhang, Rui Zhang, Wenhao Chen, Han Wang, Jiecheng Xiao, Quan Liu, Shaohuang Weng, Min Chen   +8 more
doaj   +1 more source

Sulfonated PEEK-statins delivery system enhances bone repair in mice with skull defect

Di-san junyi daxue xuebao, 2020
Objective To explore the effect of sulfonated poly-ether-ether-ketone (SPEEK)-statin delivery system on the repair of bone defect, H-type blood vessels and bone formation.
LYU Dan, SUN Yingxiao, OUYANG Liping, LI Ling   +3 more
doaj   +1 more source

Effect of Covalent Organic Frameworks Containing Different Groups on Properties of Sulfonated Poly(ether ether ketone) Matrix Proton Exchange Membranes

Nanomaterials, 2022
The rich −SO3H groups enable sulfonated poly (ether ether ketone) (SPEEK) to possess excellent proton conductivities in proton exchange membrane (PEM), but cause excessive water absorption, resulting in the decline of dimensional stability.
Xiaoyu Meng, Yinan Lv, Lei Ding, Luman Peng, Qiwang Peng, Chuanbo Cong, Haimu Ye, Qiong Zhou   +7 more
doaj   +1 more source

Highly proton conductive and mechanically robust SPEEK composite membranes incorporated with hierarchical metal–organic framework/carbon nanotubes compound

Journal of Materials Research and Technology, 2023
The preparation of composite proton exchange membranes (PEMs) by incorporating metal- organic frameworks (MOFs) into polymeric substrates has become a hot research topic in the field of fuel cells in recent years.
Jinyu Fu, Jing Ni, Jie Wang, Ting Qu, Fuqiang Hu, Hai Liu, Quanyuan Zhang, Zushun Xu, Chunli Gong, Sheng Wen   +9 more
doaj   +1 more source

Facile surface functional polyetheretherketone with antibacterial and immunoregulatory activities for enhanced regeneration toward bacterium-infected bone destruction

Drug Delivery, 2021
Existing biologically inert or unmodified implants to treat infectious bone defects or osteomyelitis still cannot effectively solve bacterial infection and osseointegration.
An’an Sun, Xi Lin, Zhiqiang Xue, Jiyue Huang, Xinxin Bai, Lingling Huang, Xinhua Lin, Shaohuang Weng, Min Chen   +8 more
doaj   +1 more source

Efficiency Analysis of Fuel Cell Components with Ionic Poly-Arylether Composite Membrane

Membranes, 2022
We use polyethylene glycol as an additive to explore how the hydrogen bonding of this additive changes the properties of SA8 blended sulfonated polyetheretherketone (SPEEK) composite films.
Hsin-Yi Wen, Guang-Hsiang Wang, Mei-Ying Chang, Wen-Yao Huang, Tung-Li Hsieh   +4 more
doaj   +1 more source

Enhancing PEEK surface bioactivity: Investigating the effects of combining sulfonation with sub-millimeter laser machining

Materials Today Bio, 2023
Due to its superior mechanical properties and chemical stability, Polyetheretherketone (PEEK) has emerged as an alternative to conventional metal implants. However, the bio-inertness of PEEK's surface has limited its applications. Ambient sulfonation has
Slila Chayanun, Theerapat Chanamuangkon, Budsaraporn Boonsuth, Aldo R. Boccaccini, Boonrat Lohwongwatana   +4 more
doaj   +1 more source